High above the _________ , water molecules change into liquid that falls down in precipitation of rain to the earth.
举一反三
- 中国大学MOOC: Water i________ a liquid made up of molecules of hydrogen and oxygen in the ratio of 2 to 1.
- It ’ s high time we _____cutting down the rain forests.
- The method Nourishing kidney-yin to promote liver-yin deficiency is established on the basis of （ ）。 A: Water generating wood. B: Fire generating earth C: Water restricting fire. D: Wood restricting earth.
- Moisture in food can be divided into "bound water" and "free water" according to different properties. Which of the following is not bound water? A: The first layer of water molecules adsorbed to glucose molecules B: Water molecules with unpaired electrons entering the outer empty orbits of sodium ions C: Water molecules adsorbed in capillaries in food tissue D: Water molecules bound to the negative ion of glutamic acid on the protein peptide chain
- Which statement of the following is false according to the passage A: The boiling point of water on a mountain three kilometers high is only 90 Celsius. B: It would take you longer to cook potatoes in boiling water on the mountain than it would at sea level. C: When the temperature of a liquid is raised enough, the liquid boils. D: The boiling point of water on a mountain six kilometers high is 95 Celsius.